Will give brainlist.

marbury vs madison established the principle of judicial review.

a. true
b. false

Which two important economic activities in the west are possible because of the united states natural resources

What is the main difference between primary and secondary sources? a. primary sources are historical documents, and secondary sources are modern-day documents. b. primary sources are derived from museums and archives, and secondary sources are created by history students and academics. c. primary sources are found in ancient places with a rich history, and secondary sources are found in historical journals and blogs. d. primary sources are created during a particular historical era, and secondary sources are created by studying primary sources.

Based on what you have learned, why would victories in the western theater have been important to the union?